1. Applications of XY-180 hydraulic core drilling rig The XY-180 hydraulic core drilling rig is designed on the basis of the XY-1A hydraulic core drilling rig. It is a low speed and high torque portable drilling machine with oil pressure. This drill rig is suitable for engineering geological survey of railway, hydropower, traffic, bridge, dam foundation and other buildings, geological core drilling and physical investigation, drilling holes for small holes and blasting holes, a small water well drilled. 3.Parameters of XY-180 hydraulic core drilling rig Drilling depthm 180/150/120/90/70/30 Borehole diametermm 75/91/110/130/150/300 Maximum opening diametermm 375 Drill pipe diametermm 42/50 Spindle speed (r/min) 71/142/310/620 Spindle strokemm 450 Upgrading ability (KN) 15 Diameter of steel wiremm 12 Type gear pump Model YBC-12/80 Rated pressure (MPa) 8 Rated speed (r/m) 1500 Displacementml/r 8 Power supply ZS1115 diesel engine and 15kw motor